Order your 1975 college football national champions shirt

Once upon a time, the Arizona State Sun Devils were college football national champions — well, at least could’ve claimed to be.

You can even buy a shirt to prove it.

Five teams in the final 1975 AP Top-20 stood with one loss. One team, however, was undefeated. It was none other than No. 2 Arizona State.

The Sun Devils battled past the likes of Washington, Utah, and TCU, beating the three by an average of 24 points before winning 24-21 over arch-rival Arizona, then racing past then-No. 6 Nebraska, 17-14, to win the 1975 Fiesta Bowl.

It was enough to claim a national championship. Order it here!

Here’s where it gets tricky: In the final poll, the Oklahoma Sooners finished on top.

The Sooners lost to a 5-and-3 Kansas team in week nine, then avenged that loss with a 14-6 win over then-No. 5 Michigan in the 1975 Orange Bowl.

Oklahoma, the preseason No. 1, shot right back to the top. Arizona State, who was unranked in the preseason, finished No. 2.

Forty-three years later and it still hurts.

But who cares? The 12-and-0 UCF Knights just had a national championship parade. You can buy a shirt, and celebrate perfection too.